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- W2349014358 abstract "Based on the research of microstructure and properties of 0.08%～0.15% C-Cr-Mo-B series and 0.15%～0.20% C-Cr-Mo series of tested steels,the basic characteristics of alloy design of high strength HFW welded pipe steels is gained,which is low carbon content and ultra carbon content,multi-microalloying design.The influence of carbon content on microstructure and properties,the roles of Nb,Mo and B are emphasized analyzed.The result showed that carbon content on the microstructure and properties of high strength HFW welded pipe steels has a great influence.The carbon element can remarkably improve the strength,but will lead to more carbides exist in microstructure,is very adverse to toughness.The elements of Nb,Mo and B have several obvious effects,such as improving hardenability,realizing solid solution strengthening,precipitation strengenthing and refining grain.Low carbon content design is the important factor to improve toughness.And through optimization of alloy design,the high strength and toughness HFW welded pipe steels of P110 grade and Q125 grade can gained." @default.
- W2349014358 created "2016-06-24" @default.
- W2349014358 creator A5055716038 @default.
- W2349014358 date "2012-01-01" @default.
- W2349014358 modified "2023-10-07" @default.
- W2349014358 title "Effect of Alloy Design on Strength and Toughness of High Strength HFW Welded Pipe Steels" @default.
- W2349014358 hasPublicationYear "2012" @default.
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